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"Maths Problem"

Really stuck on maths, can somone help please?

In triangle KLM, angle LKM = 45degrees and angle LMK = 30degrees. Find the exact value of LM/KL.

Maverick42 wrote:
> Trigonometry deals with right angled trianges.

*Claps slowly*

Oh, look, root 2 = 1.414213562 to 9 d.p which is what I got the first time :P

Sdrawkcab wrote:
> After long and careful deliberation, I decided it would be 2 over root
> 2.

I think it's root 2 full stop :)

*Scrolls down page*
*Ses previous post*
*Runs*

FantasyMeister wrote:
> And if you studied the Sine Formula recently, then you know this
> method is the right one to use. If you've never studied the Sine
> Formula, then it's probably wrong :)

That's impossible though, as you're not given the lengths of any other sides, therefore

..a.........b
----- = -----
sin a.....sin b

Won't work, as you don't know what a OR b =

FantasyMeister wrote:
> Sdrawkcab wrote:
> But is that the exact value?
>
> No, if you expressed it as an exact value you'd have to say the answer
> was:
>
> Sin 45/Sin 30

Or better yet:

2 * 1/Root2 I believe (Exact value of Sin 45, I think...)

I WOULD be able to tell you, but, it's FAR too difficult when not on paper...

After long and careful deliberation, I decided it would be 2 over root 2.

Sdrawkcab wrote:
> But is that the exact value?

No, if you expressed it as an exact value you'd have to say the answer was:

Sin 45/Sin 30

Bear in mind I worked this out in my head and only used a calc to work out the Sin values, therefore I might have made an error along the way somewhere. But I think the answer lies somewhere after the Sine Formula is applied to the problem.

But is that the exact value?

SOH CAH TOA

*Goes back to bowl of noodles*